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Médias (1)
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Géodiversité
9 septembre 2011, par ,
Mis à jour : Août 2018
Langue : français
Type : Texte
Autres articles (89)
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Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
Configuration spécifique d’Apache
4 février 2011, parModules spécifiques
Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
Création d’un (...)
Sur d’autres sites (2075)
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Change AVI creation date with ffmpeg ?
1er novembre 2016, par brockAs far as I can tell the following ffmpeg command should copy all existing metadata in the input file to the output file and modify the specified field in the output file :
ffmpeg -i VID_20130502_220104.avi -metadata creation_time="2013-05-02 22:01:04" -codec copy VID_20130502_220104-2.aviInstead, it seems to strip all metadata from the output file. Here is the output of a few commands. I am going nuts. I think this should work, but why is it not ?
Command to edit the creation time :
ffmpeg -i VID_20130502_220104.avi -metadata creation_time="2013-05-02 22:01:04" -codec copy VID_20130502_220104-2.avi
ffmpeg version 3.1.5 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 47.100 / 6. 47.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from 'VID_20130502_220104.avi':
Metadata:
encoder :
maker : NIKON
model : COOLPIX S4300
creation_time : 2011-01-01 00:00:00
Duration: 00:01:30.50, start: 0.000000, bitrate: 32135 kb/s
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 31782 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
[avi @ 000000000032ad40] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
Last message repeated 1 times
Output #0, avi, to 'VID_20130502_220104-2.avi':
Metadata:
creation_time : 2013-05-02 22:01:04
maker : NIKON
model : COOLPIX S4300
ISFT : Lavf57.41.100
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, q=2-31, 31782 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, mono, 352 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 891 fps=0.0 q=-1.0 size= 116171kB time=00:00:29.69 bitrate=32043.1kbits/s speed=59.4x
frame= 1739 fps=1739 q=-1.0 size= 227191kB time=00:00:57.96 bitrate=32107.5kbits/s speed= 58x
frame= 2609 fps=1739 q=-1.0 size= 340940kB time=00:01:26.96 bitrate=32115.9kbits/s speed= 58x
frame= 2715 fps=1734 q=-1.0 Lsize= 355018kB time=00:01:30.49 bitrate=32136.3kbits/s speed=57.8x
video:350984kB audio:3897kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.038597%Command to inspect the output file metadata with ffmpeg :
ffmpeg -i VID_20130502_220104-2.avi
ffmpeg version 3.1.5 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 47.100 / 6. 47.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from 'VID_20130502_220104-2.avi':
Metadata:
encoder : Lavf57.41.100
Duration: 00:01:30.50, start: 0.000000, bitrate: 32136 kb/s
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 31782 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
At least one output file must be specifiedCommand to inspect the input file metadata with exiftool :
exiftool.exe VID_20130502_220104.avi
ExifTool Version Number : 10.30
File Name : VID_20130502_220104.avi
Directory : .
File Size : 347 MB
File Modification Date/Time : 2013:05:13 16:33:52-04:00
File Access Date/Time : 2015:11:10 23:08:25-05:00
File Creation Date/Time : 2015:11:10 23:08:25-05:00
File Permissions : rw-rw-rw-
File Type : AVI
File Type Extension : avi
MIME Type : video/x-msvideo
Frame Rate : 30
Max Data Rate : 488.3 kB/s
Frame Count : 2715
Stream Count : 2
Stream Type : Video
Video Codec : mjpg
Video Frame Rate : 30
Video Frame Count : 2715
Quality : 10000
Sample Size : Variable
Image Width : 1280
Image Height : 720
Planes : 1
Bit Depth : 24
Compression : MJPG
Image Length : 2764800
Pixels Per Meter X : 0
Pixels Per Meter Y : 0
Num Colors : Use BitDepth
Num Important Colors : All
Audio Codec :
Audio Sample Rate : 22050
Audio Sample Count : 1995256
Encoding : Microsoft PCM
Num Channels : 1
Sample Rate : 22050
Avg Bytes Per Sec : 44100
Bits Per Sample : 16
Maker Note Type : NIKON
Maker Note Version : 0.1.0.0
Make : NIKON
Model : COOLPIX S4300
Software : V1.0
Equipment : NIKON DIGITAL CAMERA
Orientation : Horizontal (normal)
Exposure Time : 1/15
F Number : 3.5
Exposure Compensation : 0
Max Aperture Value : 3.2
Metering Mode : Multi-segment
Focal Length : 4.6 mm
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Date/Time Original : 2011:01:01 00:00:00
Create Date : 2011:01:01 00:00:00
Focus Mode : AF-S
Digital Zoom : 1
Color Mode : COLOR
Sharpness : AUTO
White Balance : NORMAL
Noise Reduction : OFF
Thumbnail Image : (Binary data 3082 bytes, use -b option to extract)
Aperture : 3.5
Duration : 0:01:30
Image Size : 1280x720
Megapixels : 0.922
Shutter Speed : 1/15
Focal Length : 4.6 mmCommand to inspect the output file metadata with exiftool :
exiftool.exe VID_20130502_220104-2.avi
ExifTool Version Number : 10.30
File Name : VID_20130502_220104-2.avi
Directory : .
File Size : 347 MB
File Modification Date/Time : 2016:11:01 00:17:38-04:00
File Access Date/Time : 2016:11:01 00:17:36-04:00
File Creation Date/Time : 2016:11:01 00:15:18-04:00
File Permissions : rw-rw-rw-
File Type : AVI
File Type Extension : avi
MIME Type : video/x-msvideo
Frame Rate : 30
Max Data Rate : 3923 kB/s
Frame Count : 2715
Stream Count : 2
Stream Type : Video
Video Codec : MJPG
Video Frame Rate : 30
Video Frame Count : 2715
Quality : Default
Sample Size : Variable
Image Width : 1280
Image Height : 720
Planes : 1
Bit Depth : 24
Compression : MJPG
Image Length : 2764800
Pixels Per Meter X : 0
Pixels Per Meter Y : 0
Num Colors : Use BitDepth
Num Important Colors : All
Audio Codec : .
Audio Sample Rate : 22050
Audio Sample Count : 1995256
Encoding : Microsoft PCM
Num Channels : 1
Sample Rate : 22050
Avg Bytes Per Sec : 44100
Bits Per Sample : 16
Software : Lavf57.41.100
Duration : 0:01:30
Image Size : 1280x720
Megapixels : 0.922 -
Problems with FFMPEG concat and/or MP4BOX
11 novembre 2016, par user3730954I’ve been searching for a reliable way to concat a large (>30) number of mp4 files.
My methods so far have been trying the MP4BOX concat CLI, and FFMPEG’s concat filter (such as
ffmpeg -auto_convert 1 -y -f concat -i files.txt -c copy out.mp4).Both tools produce the same problem : joining 2 or 3 files seems to work great, but any greater number produces a corrupted mp4 file (such as https://drive.google.com/file/d/0B_mWxBuwYcSgQjQtUnpQeUxVTm8/view). I can create a workaround where I join only 2 videos at a time, until all videos have been joined, but this does not work for an odd number of joins (i.e. 13).
Why do these methods work on some files, but not others ?
FFPROBE produces errors as you would expect on these corrupted files :
error while decoding MB x y, bytestream z
Reference 2 >= 2
top block unavailable for requested intra modeexample FFMPEG output :
ffmpeg version N-80901-gfebc862 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 47.100 / 6. 47.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36b3a80] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'twitter-files.txt':
Duration: N/A, start: 0.000000, bitrate: 415 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s
Metadata:
handler_name : SoundHandler
[mp4 @ 0x36b7dc0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
Last message repeated 1 times
Output #0, mp4, to 'twitter-tmp.mp4':
Metadata:
encoder : Lavf57.41.100
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 130 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733160] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733140] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x36b7dc0] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733140] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 2 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x36b7dc0] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 4 times
[mp4 @ 0x36b7dc0] Non-monotonous DTS in output stream 0:0; previous: 306957, current: 306445; changing to 306958. This may result in incorrect timestamps in the output file.
[mp4 @ 0x36b7dc0] Non-monotonous DTS in output stream 0:0; previous: 306958, current: 306957; changing to 306959. This may result in incorrect timestamps in the output file.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
frame= 750 fps=0.0 q=-1.0 Lsize= 1088kB time=00:00:30.04 bitrate= 296.6kbits/s speed= 366xOSX output :
ffmpeg version 3.0 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 7.3.0 (clang-703.0.31)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libvpx --enable-vda
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49808c00] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'twitter-files.txt':
Duration: N/A, start: 0.000000, bitrate: 415 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s
Metadata:
handler_name : SoundHandler
Output #0, mp4, to 'tmp-twitter.mp4':
Metadata:
encoder : Lavf57.25.100
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 130 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a005400] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a005400] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800e00] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Non-monotonous DTS in output stream 0:0; previous: 306957, current: 306445; changing to 306958. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f9c4a000c00] Non-monotonous DTS in output stream 0:0; previous: 306958, current: 306957; changing to 306959. This may result in incorrect timestamps in the output file.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49010e00] Auto-inserting h264_mp4toannexb bitstream filter
frame= 750 fps=0.0 q=-1.0 Lsize= 1146kB time=00:00:30.04 bitrate= 312.4kbits/s speed= 192x -
How to use multi colors in drawtext FFmpeg
21 novembre 2016, par RSMEENAHow can i use multi colors in drawtext ffmpeg. for example text=’NATIONAL PARK’ , now i want ’NATIONAL’ in blue and ’PARK’ in red.
How can i do that in FFmpeg.
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